<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/db/file/upload.do" enctype="multipart/form-data" method="post">
    <input id="dir" type="file" name="dir" webkitdirectory mozdirectory/>
    <input id="uploadDir" type="submit" value="提交文件夹">
</form>
</body>
</html>